Justice League - Season 1 - Eps 4: The Enemy Below (1)
When Aquaman, ruler of Atlantis, decides he has had enough of the surface-dwellers trespassing in his ocean, the Justice League tries to smooth things over. Aquaman takes Superman's advice and arrives in New York City to speak to the World Assembly, but it soon becomes apparent that he may have been right about the surface-dwellers all along.
About Justice League

Title: Justice League
First Air Date: 2001-11-17
Last Air Date: 2004-05-29
Status: Ended
Rating: 8.1/10 (from 493 votes)
Language: EN
Seasons: 3
Total Episodes: 50
Network: Cartoon Network
Genres: Action & Adventure, Animation, Sci-Fi & Fantasy
Production Companies: Warner Bros. Animation, DC
Synopsis
The long-awaited rebirth of the greatest superhero team of all time: Batman, Superman, Wonder Woman, The Flash, Hawkgirl, Green Lantern, and Martian Manhunter.
Cast

Kevin Conroy
Batman (voice)

George Newbern
Superman (voice)

Susan Eisenberg
Wonder Woman (voice)

Phil LaMarr
Green Lantern (voice)

Carl Lumbly
J'onn J'onzz (voice)

Michael Rosenbaum
The Flash (voice)

Maria Canals-Barrera
Hawkgirl (voice)